Home / 39,513.19-59,257.48-13,211.78

Finding the Fourth Proportional to 39,513.19, 59,257.48 and 13,211.78

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Solution

The fourth proportional to 39,513.19, 59,257.48 and 13,211.78 is: 19,813.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,513.19 : 59,257.48 = 13,211.78 : x
  2. Step 2: Convert to fraction form
    39,513.19/59,257.48 = 13,211.78/x
  3. Step 3: Cross multiply
    39,513.19x = 59,257.48 × 13,211.78
  4. Step 4: Simplify right side
    39,513.19x = 782,896,904.23
  5. Step 5: Solve for x
    x = 782,896,904.23/39,513.19
  6. Step 6: Final answer
    x = 19,813.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.